20798660

素因数分解:

$2^2\times 5^1\times {\mathrm{107}}^1\times {\mathrm{9719}}^1$

素因数の和:9835

約数の個数: 24

約数和(自身を含む): 44089920

約数和(自身を除く): 23291260

約数列:

[1, 2, 4, 5, 10, 20, 107, 214, 428, 535, 1070, 2140, 9719, 19438, 38876, 48595, 97190, 194380, 1039933, 2079866, 4159732, 5199665, 10399330, 20798660]

約数ペア:

[(1, 20798660), (2, 10399330), (4, 5199665), (5, 4159732), (10, 2079866), (20, 1039933), (107, 194380), (214, 97190), (428, 48595), (535, 38876), (1070, 19438), (2140, 9719)]